The Star Trek Ship Design 4pc Coaster Set are a fine set of four different 4'' by 4'' glass coasters. Two of them feature the Enterprise while the other two show off a Bird of Prey. Pretty sweet, eh? The Star Trek Ship Design 4pc Coaster Set is a great way to show off your pride in the universe spanning series from the mind of Gene Roddenberry. When they start making holodecks and FTL starships you'll be happy you have this groovy set!